What is the data transfer speeds within the disk, to other devices?

Posted by Kumar on Super User See other posts from Super User or by Kumar
Published on 2011-02-25T04:15:43Z Indexed on 2011/02/25 7:27 UTC
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Filed under:

disk

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data-transfer

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read-write

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hard-drive

I use Debian 6 on a HP Elitbook 6930 with 2Gigs of RAM. I was copying two AVI files, 1.5 GB in total, and noticed that the data copying was done at the rate of 4MB/sec. When I copy same AVIs to my Western Digital Passport 25G USB plugin drive the data transfer speed is 11+MB/sec. This speed is different if I plugin the drive to different USB ports. Interestingly, at work I also downloaded a 16MB IE8 exe on my virtual xp, run inside Oracle Sun Virtual Box, and it was downloaded AND saved within a second. We have a high speed network at work. :-)

Why and how this difference in data speeds is possible?

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